The Canadian Consumer Price Index (based on a value of 100 in 1971) rose from 97.2 in 1970 to 210.6 in 1980 and (based on a value of 100 in 1986) rose from 67.2 in 1980 to 119.5 in 1990. Calculate the annual rate of inflation for the period 1970-1990.

Canadian Consumer Price Index

A measure that examines the weighted average of prices of a basket of consumer goods and services, such as transportation, food, and medical care, calculated by Statistics Canada.

Annual Rate of Inflation

The percentage increase in the cost of goods and services over a one-year period.